docs: def cli(env, identifier, allocation, port, routing_type, routing_method):
      """Adds a new load_balancer service."""
  
      mgr = SoftLayer.LoadBalancerManager(env.client)
  
      _, loadbal_id = loadbal.parse_id(identifier)
  
      mgr.add_service_group(loadbal_id,
                            allocation=allocation,
                            port=port,
                            routing_type=routing_type,
                            routing_method=routing_method)
  
      env.fout('Load balancer service group is being added!')